body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      background-color: #f0f0f0;
      flex-direction: column;
    }

    h1, #score, #clicks {
      color: #333;
    }

    canvas {
      border: 1px solid black;
      background-color: white;
    }